Punch



Oct. 20 1925- 1,558,289 y H. RosENBERG l PUNCH Filed April '6. 1925 2Sheets-Sheet 1 Patented Oct. '20, 1925.

UNITED STATES rrnylyrrin nosnnnnne, or NEW "zonk, N. Y.

.Application ined April 6, v19215. Serial No. 21,014.

To all whom t may concern:

Beit'knownY that l, HYMAN RosnNenRe, a citizenof the United States' andresiding atNew York;y in the county of New York` and State of New York,haveinvented certain new and `useful Improvements in Punches@ andIdohereby declare the following' to bea full, clear,` and eiractdescription of the invention, suclias will enable others'skilled lin the`art to which it appertains to nialre and use the vsaine. j H

This invention l relatesto improvements in punchesof the) type adapted tbe operated liyhand andancrhoredbn abench. {""Tlie Object'inifiewistoprovideineans for j punchingworl ofvariable depths such as the canopiesof chandeliers and the like, and a more" detailed object is the easy,quick and effective adjustment of the die relative tothe punchy andrelative to 'the support of lthe ldie and the adjustment of the diesupport'relative 'to the `punch ysupport for facilitatingoperation onwork of different With these and further objects in ViewV as willinpa'rt hereinafter' become apparent jai'i'd"y in part be stated,I theinvention coinprises certainlnovel constructions, combination andarrangements of parts as subsequentin specified and claimed, l In the*accompanying drawings;-

Figure l is a View `in= side elevation of a punchernbodying'the featuresof the `presentinvention shown adjusted forshallow worl' i Figure 2 is asimilar Viewl of the saine shown adjusted for 'deep work. j

Figure '3 is a rearview of the parts as seenin Figurel. i i "Figurete isan enlarged, detail, fragrrnentar-y, sectional elevation of `the punchland die andcontigu'ous parts with the'deep work extension in place. n

Figure 5 is a similar View with the die located f for. shallow work,the` partsV being seen on a still further enlarged scale. l ,Figure `Gisa front or end View of t-he die arbor andwdie detachedonthe saine scaleas Figure 5. d

Figure 7 is a vertical` `central section through the punch portion?parts being seen in elevation and the parts being shown on the sainescale as Figure 4.

Referringr tothe drawings by numerals, 1 indicates an vapproprintebaseadapted for anchorage to a bench or other suitable sup` port fromwhich rises the standard 2 arched to forintbe overbanging ann-8terminating in thesleeve' 4l. forming thepunch head. rlhe punch bar `5is mounted to reciprocate vertically within the sleeve 4, and atitelower end carries the punch 6j `The upper portion of the bar zis formedintoy a; rack 7 meshing withj a segmental gear 8 :formino; theI innerlend of anAV operating levier 19, which f-lever is pivotally carried byYa pin 10., The upper lportion of the armS :is grooved and formed with'vupstanding side plates 11, 11, tlirouph which the pin 10extends andfinds bearing and between which the-lever 9 swings. A set screw-,12de

`threaded through an outstanding lug 13'on i the forward portionofsleeve 1- andadapted to be adjusted to limit the lforward oroperating'strolze' of the leveri). A bifurcated or other Y'appropriatestripper 14 is carried at thelowe'r end ofthe stein 15 `which projectsupwardly in a vertical. bore 16in the rear portionof the headersleeve 1. LA set screw- 17 is threaded into engagement with theV stein15r for locking the stripper 14 in anyldesired adjusted position.

The' standard 2 andarrn 3 are preferably i forrne'd of a central webwith marginal flanges, as clearly indicated in' Figure and seen inFigures 1 and 2, and the standard 2 has its web'enlarged at' two pointsand perforated to formsleev'es 18, 18, spaced verticallyapart, and eachanexact duplicate of the' other.` Locking Vset screwslS),

19, are'threaded through the sides of the sleeves 18 to lock' thereinthe shank 20of an arbor 21 outstanding forwardly` for said' shank. Theshank 20 is cylindrical toisnuglv litwithineither of. the z sleevese18,and is adapted to'be rigidly clamped `intoaplace by the actionof thescrews 19.

The arbor 21 is made up preferablyofa mainlbarliaving atapered fillet orweb 22 beneath to insure adequate capacity. Ipfhe outer or free endofthe arbor 21 isformed with Ia `vertical here or opening l23 `having anannular odset shoulder 24 forming a seat for the parts to be mounted onthe arbor. A set screw 25 is preferably provided as a means for lockingthe parts to the arbor seated on the shoulder 24.` ris best seen inFigure a sleeve 26 is placed within the bore 23 resting on the shoulder24e and locked by the set screw 25 when thearbor is intended forlocation for shallow work, as seen in Figure l. rEhe sleeve 26 isinternally threaded and is adapted to be engaged by the threaded shankof a tubular die 27 proportioned and located to cooperate with andreceive the punch 6. A set screw 23 is passed through a portion otthe'punch bar 5 to engage the shank of punch 6 and lock the punch in itsoperative position. er gauge 29 partly surrounds the arbor 2l and iscarried by a rod 3() extending through a bore 3l in the standard 2 andclamped in position by a set screw 32 for 'facilitating accuratelocation of work to be operated upon by the punch 6 and the die 27.

An extension standard 33 is provided with a shank 34 of the sameexternal diameter as the sleeve 26 for enabling introduction into thebore 23 and against the seat 2el'when the sleeve 26 is removed, and theupper end portion oi' the standard 33 is provided with a bore or recess35 oli the same dimensions as that portion of the bore 23 into which theshank 34 extends, the bore terminating in an annular seat or shoulder3G. The sleeve 26 is adapted to be introduced into the bore 35 to reston the seat 3G and to be locked in position by a set screw 37 passingthrough a portion oi the extension standard The extension standard 33 ispreferably tubular and tl e lower end oi the shank ot' die 27 isprovided `vith tool-receiving kerls l33, so that a screw-driver or liketool may be introduced either 'through the lower end ot the bore 23alone or therethrough and throughout the length ot the standard 33 toengage and locate the die 27 for adjustment or removal or final seatingthere-ot.

lVhen shallow work is' to be opera'iffl upon, the parts ar arranged assen in Figure l., and the canopy or other work to be operated upon isintroduced between the punch G and die 27 incident to lifting ot thepunch bar by the rearward swinging o1 the handle 9 to the position seenin Figure 2. The work being proportionally located, the handle iS swungforwardly again, and the rack 7 thus orceddown to the punch operatingposition, the punch cutting through i the material of the work andejecting a disc through the bore of the die 27. It `frequently happensthat shallow work and deep lwork are required on the same piece ofmaterial, or that the same operatormust operate on shallow work for atime and then findsit necessary to work on deep work for a time. Whenthis occurs, it is not necessary tor the operator to go to some otherpunch as is now commonly the practice, but it is only necessary toloosen the upper sets of set screws i9 and withdraw the shank 20 fromthe upper sleeve 18 and to insert the same in the lower sleeve andtighten up the set screws 19 for the lower sleeve, and then to adjustthe die 27 and the extension standard 33 when the parts are ready tooperate on the deep work. The adjustment of the die and extensionstandard merely consists of loosening the set screw 25, when the partsare in the position seen in Figure 5, removing the sleeve 26 with thedie 27 located therein, placing said sleeve in the bore 35, and clampingit thereinV with the set screw 37, and then introducing theshank '34 ofextension standard into the bore 23 and clamping it therein with the setscrew 25. A canopy or hood Vor other deep work may then be applied overthe extension standard and successfully operated upon in the samepunching machine which just before was used for shallow work. Asubstantial saving is thus eifected in the time of the operator and inthe expense of equipment in ac'- complishing the work of two punches asnow commonly practiced by the utilization ofsleeves, the arbor having adie-receiving opening, and an extension standard having a die-receivingopening at one end and a shank at ythe other proportioned to and mountedin the die-receiving opening of the arbor.

2. In punches, the combination of a standart and arm. the standardhaving a plurality of shank-receiving sleeves spaced apart vertically, apunch bar reciprocally carried by the arm, a punch carried by said bar,moans for actuating the punch bar, an arbor having a shankproportionedto lit and be sustained by either ot' the sleeves, the arborhavinga die-receiving opening, and an eX- tension standard having asimilar die-receiving opening at one end and a shank at the othermounted in the die-receiving opening of the arbor and sustained'thereby, the extension standard being tubular.

3. In punches, the combination of a standard and arm, the standardhaving a plurality oi shank-receiving sleeves spaced apart vertically, apunch bar reciprooally carried by the arm, a punch carried by 'said bar,means for actuating the punch bar.I an arbor having a shank proportionedto tit and be sustained by either of the sleeves, the arbor having ade-reoeving opening therethrough formed with a Shoulder, e sleeveadapted to it Within said opening and rest on said shoulder., n diedetaehablv Carried by said sleeve, an extension standard having anopening proportioned to receive said die` Carrying Sleeve at one end anda shank at the other end having the same proportions of the die-carryingsleeve and mounted in the de-receiving opening of the arbor, the 10extension standard being` tubular andthe lower end portion of the diebeing adapted to receive en operatingr tool. 1 v

In testimony whereof a'x my signature.

HEYMAN ROSENBERG.

